Overriding Scsi Termination Settings; Manual Termination - IBM Adaptec Ultra320 SCSI User Manual

Overriding SCSI Termination Settings

You use SCSISelect to control the termination of the SCSI channel
on an Adaptec SCSI Card 29320ALP. The default termination
setting for the channel is Automatic. This setting allows the SCSI
card to adjust SCSI termination automatically, depending on which
connectors have SCSI devices attached to them.
Regardless of the SCSISelect termination setting, the SCSI card
termination is always disabled when the power is turned off. If you
want SCSI card termination to be enabled when the power is
turned off, you must terminate the SCSI channels manually.

Manual Termination

To manually terminate the channel on the Adaptec SCSI Card
29320ALP, place a shunt on jumper J1.The following figure shows
where the jumper is located on Adaptec SCSI card 29320ALP.
Note: If you manually terminate the SCSI card with jumpers,
you will override the SCSISelect setting. Making changes in
SCSISelect will have not effect on termination when these
jumpers are installed.
Using the Adaptec SCSI Card and SCSI Devices
J1
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